package com.itheima.数组工具类;

public class ArrayUtilTest {
    public static void main(String[] args) {
        int[] arr={10,20,50,34,100};
        String str=ArrayUtil.printArr(arr);
        System.out.println(str);
        double average=ArrayUtil.getAverage(arr);
        System.out.println(average);
    }
}
